Messages in this thread | | | Date | Thu, 16 Nov 2000 14:22:19 -0500 (EST) | From | "Mike A. Harris" <> | Subject | Re: Setting IP Options in the IP-Header |
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On Thu, 16 Nov 2000, Nishant Rao wrote:
>Date: Thu, 16 Nov 2000 11:55:24 -0600 (CST) >From: Nishant Rao <nishant@cs.utexas.edu> >To: Andi Kleen <ak@suse.de> >Cc: linux-kernel@vger.kernel.org >Content-Type: TEXT/PLAIN; charset=US-ASCII >Subject: Re: Setting IP Options in the IP-Header > >Well, while what you say makes sense, it isn't exactly a solution to our >problem. > >we are trying to expose and set a NEW option altogether. So our question >pertains more to what code we write in the kernel to create and expose a >new custom option. so for this, we would need to know the offsets of the >current options like source routing etc and then hopefully try and stuff >data from setting our option after the maximum that can be set by these >other existing options. > >once that code is in place within the ip_build_options routine in the >ip_options.c file in the linux kernel, we can then use the setsockopt() >at the application level to make sure that a packet is filled with the >corresponding option. > >i hope i was able to explain my question more clearly.
RFC791 should give you all you need to know I believe, plus examining the existing kernel sources. It's pretty basic.
---------------------------------------------------------------------- Mike A. Harris - Linux advocate - Open source advocate This message is copyright 2000, all rights reserved. Views expressed are my own, not necessarily shared by my employer. ----------------------------------------------------------------------
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